Disk-record attachment for sound-reproducing machines.



C. W. SCHWANK. DISK B30031) ATTAGHMENT FOB scum) REPRODUCING MACHINES.

APPLIGATIGS FILED MAR. 10. 1908.

Patented Sept 15, 1908.

2 SHEETS-SHEBT l.

lj lliimyzs'as $0 LIZ/010 e. W. SGHWAHK. DISK RECORD ATTACHMENT FOB SOUND RBPRODUGING MACHINES.

1 APPLICATION FILED HASH 10, 19 08.

898,792.. Patented Sept. 15, 1908.

2 SHEETS-SHEET 2.

supporting: and guiding the bridge bar.

CHARLES W. SCHWANK, OF KANSAS CITY, MISSOURI.

DISK-RECORD ATTACBJHENT FOR SQUN'D-BEPRODIJ'CING MACHINES.

Specification of Letters Patent.

Patented Sept. 15, 1908.

A iicieon filed mm; 10, 1908. Serial No. 420,128.

To all 1137mm! it may comm:

lie-it known that LCmmLns W. SC I-I\ VANK, a citizen of the United States, residing at Kansas Fit in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in D1Sk Re(-.01(l Attachments for Sound- Reproducing Ii struinents, of which the following is a specificzition.

This invention relates to sound reproducing instruments and more particularly to disk attachments for cylinder graphophones or phonographs, and my ob ect 15 to produce an ellicientand reliable attachment of this character capable of quick and easy attachment to or removal from any of the approved sound reproducing instruments.

A further object is to produce an attachment of this character of simple, compnct, small, durable and inexpensive construction.

With these objects in \l(\\ and others as hereinafter appear, the ipwntion consists in certain novel and peculiar features of construction and organization as hereinafter described and claimed, and in order that it may he fullr understood refer nice is to be had to the accompanying drawmgsnn which- Figure 1, is a top phm view of a gr aplio phone of well known type, eouippedwith an attachment embodying my invention, the attachment being shown in section in the plane of the undersidepf the disk-record-carrying plate. Fig. 2, is an 0I1(l VltW of the shine] Fig. 3, is a vertical section taken on the line TIL-111 of Fig. 2. Fig. 4, IS a ert1- cal section on the dotted line i" of Fig. 2. Fig. 5, is a top view of the vertically ad ust- :i-blo bridge bar. Fig. 6, is an inverted plan view of the .ittiiclnnent for the disk-recordcarrying platen-rid track. Fig. 7, is a detail -five view of one of the standards F 1g. 8, is a detail perspective View of one of the chimp books of the attachment. a section of it part of the horn t-o illustrate the construction of the chimp iornimgpzirt of the attuelunent..

In the said drawings, 1 indicates the case of a cylinder graphophone or other similar instrument. 2 is the metal frame thereof in which is journaled the cylinder 3, adapted to be driven in the usual rnanner (luring the sound reproducing operation. I Referring now to the attachment, 4 indicates a bar provided with a longitudinal slot 5, and near its center and at one side of log. 9, 1S

said slot with an upwardly projecting guide pin 6.

7 indicates a standard rigidly secured on bar 4 near one end of the some and rovided by preference with a foot 8. 9 in icates a standard secured upon the opposite end of bar 4 and provided with a foot 10 projectin beyond. the corresponding end of our 4 and equipped atsuch projecting end with a. bifurcation 1.1 for the reception of the clamping screw 12 hereinafter referred tomore particularly. :2

The standards 7 and Qnre provided in their upper ends with bifurcations 13 and are a so provided below said bifurcations rdth' holes 14.

15 and 16 indicatecorresnonding bars pro. vided at their outer ends with hooks 17 constitu ting what are hereinafterterined slidahle hook clamps. Each of said slidable hook clamps is provided with a longitudinal slot 18 and at its inner end with an upwardly 1'0 jecting head 19, said head being I10ih8t at -each side at its lower endat'20 so as to provide the narrow neck 21 uniting the head with the body of the clamp, and slidinglr occupying the slot 5 of bar 4. The walls of the slots 18 in the slidable hool': clamps are preferably beveled as at 22 in order to provide countersinks wherein may be inclosed the heads of screw bolts 23 extending up through said slots into bar 4for the purpose of providing in conjunction with necks 21, guides which will insure direct endwise reciprocation or adjustment of the slidable hook.

clamps.

24 indicate adjusting screws mounted in holes 14 of the standards 7 and 9 and having their inner ends secured in any well-known or suitable manner to the heads 19 of the slidaible hook clamps so that when said screws are turned the hook clamps shall be caused to approach or recede from each other.

25 indicates the top or bridge bar of the device, the $81116 being provided in its opposite edges near its ends with notches 26 to receive the bifurcated up er ends of standards 7 and 9, the relation eing a sliding one so that said bridge bar may be moved upward and downward to accommodate cylinders 3 of varying diameter or hright. The. bridge bar is provided with a hole 27 to reocive the guide pin 6 of bar 4 and at each end with a. threaded hole 28 for the reception of the vertical screws 29, the lower ends of said screws being swivelcd to the foot portions of the standards so that when the screws are turned in one direction or the other the bridge bar will be raised or lowered.

To prevent any chance of rocking movement of the bridge bar, it is provided with a depending bracket having a guide notch or opening 31 in sliding engagement with win 6, the lower arm 32 of the bracket provi ed with said notch or opening 31, also formin a rest bearing for the lower end of a vertical shaft 33 journaled in a hole 34 in the bridgebar and, in the overhanging arm 35 of an angle bracket 36 secured to the bridge bar.

The upper end of the shaft is secured centrally to a circular plate 37 occu ying a plane just above the top of the cylin er 3 and underlying said plate and interposed between the same'and the cylinder is a circular track arranged concentrically of shaft 33, said track being preferably of sprmg metal and yielding 1y connected to plate 37 by spring arms 39, and in order to create and mainta n friction between the circular track and the v c 'linder the former is e ui ed at its lower side with a rubber or equivalent friction ring 40. Secured upon the plate 37 so as to turn therewith, in any suitable manner, is an ordinary disk-record 41, the referred connection being to provide the p ate, with a pin' 42 to extend up rough the central hole, not

shown, in the disk-record and to interpose a circular piece of fabric 43 between the late and disk-record so that the former sha be incapable of turning witho'ut imparting like movement to the latter.

44 indicates a speaker of any suitable type provided with the usual in 45 for engagement with the disk recor This speaker is connected as shown or in any other suitable manner to the horn 46 supported near its outer end from a crane 47 in the usual or any preferred manner. To supply an adjustable support for the inner end 0 e horn and the speaker in order that the latter may properl track on the record as the latter re'volves,l

rovide the following construction: 48 is a ar to be slip )ed at one end between the hook clamp 15 an the foot 10 of standard 9, said end being equipped with the clamp screw 12 hereinbefore referred to, in order that said screw may be. utilized to clamp bar 48 rigidly to said foot 10, The bar 48 may be disposed at an angle to foot 10 and extends upwardly point of a and orwardly therefrom and terminates in an upwardly projecting arm 49 having an inturned lip 50 at its upper end and carried by arm 491s a clamping screw 51 for engagement with the depending arm 52 of the swing bar 53, said end being journaled in bar 48 and its lie 50 and clamped at the desired djustznent therein by said clamping screw. At its free end bar 53 terminates in an upwardly disposed hook 54 to engage and support the reduced or inner end 01" the horn.

6t, 55 is a sleeve journaled to operate horizontally on arm 52 above the lip 56 and )ivoted to work vertically to sleeve 55, is a a1 56, which bar is also )ivoted towork vertically, at 57, to the brack a clamp ring 59; said ring comprising two members 60 and 61 hinged together at 62. The free end of one member pivot-ally carries a link 63 having at its opposite end a spring lever 64. This link is adapted to enter the bifurcation 65 in the free end of the other spring member, 61, when the spring lever is operated in the directiou indicated by the arrow Fig. 9, to the position shown, to clamp the member 61 firmly to the neck of the horn.

In the drawings the speaker is shown in et 58 pivotally supporting c linder revolves the disk will be driven t ough the frictional engagement between the track and cylinder, the music of the record being reproduced by the speaker and amplified b the horn in the usual manner. It will be 0 served that the progress of the needle inwardly on the disk-record as customary, is permitted because of what may be termed the universal joint connection between the clamp secured to the horn and the supporting bar 48, it being further observed that any vertical play of the needle necessitated or caused by the grooved disk-record is accommodated by the movement in a vertical plane of the link bar 56; After the piece has been reproduced the .operator I grasps the speaker or a nearby part of theborn to lift the needle from the. disk record and then swings the speaker outward until the needle is disposed beyond the periphery of the disk. To support the speaker in such -inoperative position its reduced or inner end is disposed in the hook of bar 53 and to guard against accidental movement said bar may be clamped at the desired point of adjust' said spring member and its companion member 60 to be withdrawn from Engagement with the born. The clamp screw 12 is then turned to permit bar -18 to be withdrawn from engagement with foot 10. The horn and sneaker sup orting means is then removed. One of t 1e screws 24 is then turned to move the slidable clamps apart slightl to permit the attachment proper, to be sli oif the case.

From the above descri tion it will be apparent that I have pr need a disk-record attachment for sound reproducing instruments embodying the features of advantage enumerated as desirable and I wish it to be understood that I reserve the right to make all changes pro eriy falling within the spirit and scope of t e appended claims.

"than. 1

Having thus described-the invention what 'I claim as new and desire to secure by Letters Patent, is:-

1 An attachment of the character described, comprising a bar provided with standards, a bridge bar connecting the standards, a suitably journaled shaft supported from the bridge bar and equipped Ill) with a disk-record-carrying plate and a C11- cular track rotatable with said disk and arranged near one face of and capable of being pressed into contact with said plate.

2. An attachment of the character described, comprising a bar provided with standards, a bridge bar connecting the standards, means for adjusting said bar on its standards toward or from the standardcarrying bar, a suitably journaled shaft supported from and adjustable with the bridge or and equipped with a disk-record-carryirg plateand a circular track rotatable with said shaft.

3. An attachment of the character described, comprising a be! provided with standards, a. brid e bar connecting the standards, means ror adjusting said bar on its standards toward or from the standardcarrying bar, a suitably journaled shaft supported from and adjustable with the bridge no and equipped with a disk-record-carryin plate, and a circular track rotatable with said shaft, and of resilient material and provided with a friction face.

4. An attachment of the character described, comprising a bar provided with standards, a guide pin between and parallel with said standards, a bridge bar slidingly mounted on the standardsand said guide pin and provided with an opening, a bearing bracket secured to and projecting upward from the bridge bar and overlying the opening thereof, a bracket dependin from the bridge bar and provided with a act underlying the said opening of the bridge bar, having a guide opening engaging said guide pin, a shaft jonrnaled in the overlying brac '0t, and extending through said opening of the bridge-bar and resting on the foot of the said underlying .brackct, a disk record carrying plate secured to the upper end of said shaft, and a resilient circular track underlying and rotatable with said plate.

5. An attachment of the character described, comprising a bar provided with standards, a bridge bar connecting the standards, a suitably journaled shaft supported from the bridge bar and equipped with a disk-rccoi'd-carrying late, a circular track rotatable with said she and arranged near one face of and capable of being pressed into contact with said plate, and means for curing the standard-carrying bar rigidlyto i stationary part of a sound-reproducing 1nstrurnent. ,f

6. An attachment of the chsracterfdcscribed, comprisi a bar provided with standards,--a bridg iar connecting the stand ards, a suitably journaled shaft supported from the bridge bar and equipped wit h a diskrecord-carrying late, a circular track rotatable with said 5 aft, and clamps adj ustably connected to the stainlard-carrying bar for securing the latter to a stationary part of a sound-reproducing instrument.

7. An attachment of the character do scribed, coinprising a bar provided with .standan ls, a bridge bar connecting the standards, a suitably journalcd shaft 511 ported from the bridge bar and equipped wit adiskrecord-carrying plate, a circular track rotatable with said shaft, and a pair of clamping hooks slidably connected to and underlying the standard-c arrying bar, and screws mounted in the standards of said bar, and engagin said clamping hooks to adjust them towarr or from each other.

8. The combination with a sound reproducing instrument having a driven cylinder,

rying bar overlying t 1e cascof said instrumerit, a bridge bar vertically adjustable upon said standards, a vertical shaft suitably. journaled and supported from and vertically od carrying plate secured to the upper end of said shaft and at one side of the same overlying said cylinder, a circular track rotatable with and underlying said late and interposed between the same an the cyiinder at one side of said shaft and exerting a yielding downward pressure on said cylinder, 9. speaker, and adjustable means bearing in fixed relation at one end to the standard-carrying bar and supporting said speaker with its needle in operative relation to the diskrecord.

ducing instrumenthaving a driven cylinder, of an attachment com rising a standard-carrying bar overlying t e case of said instru: ment, a brid bar vertically adjustable upon said stands 5, a vertical shaft suitably journalcd and supported from and vertically adjustabie-on said bridgebar, radish-record carrying plate secured to the upper end of said shaft and at one side of the same overlying said cylinder, a circular track rotatable one side of said shaft and exerting} yield: ing downward pressure on said cylinder, '1; speaker, adjustable means bearing a fixed relation at one end to the standardcarrying bar, and suppm'iing said speaker with its needle in operative relation to the disk rec- 0rd and an adjustable bar forming a part of said means and adapted for supporting the k-record. 10. The combination with a sound-reproof an attachment coin rising at standard-carjustable with said bridge bar, a disk-record-- 9. The combination with a. sound-repay,

with and underlying said plate and interposed between the same and thefcyhnder at s eaker when in inoperative relation to the i l i g ducing instrumentembodying a case, a

drivcn cylinder, :1 needle-equipped speaker and a horn connected to said speaker, of anattachment secured to the ease and embodying-a shaft suitahly journaled and disposed" in line with and at right angles to the axis of the said cylinder and pro ided at the upper end with a dish-record carrying plate partly overlapping the cylinder, and with a circular,

pith a hook at its free end for engagement with the horn [0 support the inner end of the same, and means carried by the lip-equipped bar for securing the hook'equipped bar at the desired point of adjustment.

11. The combination with a sound-remoducing instrument, emliedying a ca e, a

driven cylinder, 2. needle-equipped speaker and a horn connected to said speaker. of an attaclnnent secured tothe case and embodying a shaft suitably jonrnaled and disposed in line with and at rightangles to the axis of said cylinder and-provided at the upper end with a disk-reeord-earrying plate partly overlapping the cylinder, and with a circular Y track underlying but rotatable with said late and also partly overlapping said cyliner and exerting ayielding pressure thereon, a bar secured to and projecting from said attachment and provided at its outer end with a lip, a swing bar journaled for horizontal rotationin said bar and its lip and provided with ahook at its free end for engagement with the em to support the inner end of the same, means carried by the lip-e curing the hook-equipped ar at the desired nipped bar for sepoint of adjustment, a sleeve journaled for orizontal mm emenion the lsooli-equi )ped bar, a clamp detacha-hly secured to the horn near the speaker, a lt-raclcetpivoied to said clamp for suhstantially horizontal movement, and a link bar pivotaily connecting the said sleeve and said bracket and capable of pivotal movpment'in a vertical plane.

12. In an attachment or the character deseribed, a shaft suitably supported, a diskrecord-carr ring plate nmuntcd upon sai shaft and a circular track roi'atahle with said disk and arranged near one face and capable of being pressed into contact with said plate.

13. An attachment of the character described, comprising means capable of ining secured to a sound reproducing instrument, a shaftsuitahly iournalcd in and carried by said means, a diskrccord-carrying plate mounted on said shaft, and a circular track rotatable with said shaft and arranged near one face and capable of being pres ed into contact with said plate.

- 14. The combination wil sou11d1epl0 ducing instrument embody: g a case, a driven cylinder, :1- needle-e1 nipped speaker and a horn connected to said speaker, of an attachment secured to the case, a shaft suitahly journal'cd therein and prm'iderl with a disk-reeord-earrying plate. and a circular track engaging the eircnml'ercniial surface of the cylinder and rotatable with said shaftand capable of yielding under the pressure of the cylinder and moving toward the adjacent face of the said plate.

In testimony whereof I aliix my signature, in the presence of two witnesses.

CHARLES SCllWAh'K.

Vl'itnesses:

FRANK R. GLoYE, G. Y. Tnonrn. 

